兵工学报
兵工學報
병공학보
ACTA ARMAMENTARII
2009年
7期
967-972
,共6页
机械制造工艺与设备%板坯%工艺孔%拉深%有限元模拟
機械製造工藝與設備%闆坯%工藝孔%拉深%有限元模擬
궤계제조공예여설비%판배%공예공%랍심%유한원모의
manufacturing process and equipment%blank%technique hole%deep drawing%finite element model simulation
提出了一种在板坯外缘上打工艺孔再进行拉深的新的工艺方法,分析了带孔板坯拉深的力学特征,阐明了这种工艺能提高板坯成形性能的技术关键.以带法兰的矩形盒拉深为研究对象,运用ANSYS/LS-DYNA软件建立4个有限元模型(FEM),采用SHELL 163单元和Belystchko-Wong-Chiang算法进行有限元模拟并对其结果进行比较.结果表明:这一新工艺的拉深成形的效果十分理想.
提齣瞭一種在闆坯外緣上打工藝孔再進行拉深的新的工藝方法,分析瞭帶孔闆坯拉深的力學特徵,闡明瞭這種工藝能提高闆坯成形性能的技術關鍵.以帶法蘭的矩形盒拉深為研究對象,運用ANSYS/LS-DYNA軟件建立4箇有限元模型(FEM),採用SHELL 163單元和Belystchko-Wong-Chiang算法進行有限元模擬併對其結果進行比較.結果錶明:這一新工藝的拉深成形的效果十分理想.
제출료일충재판배외연상타공예공재진행랍심적신적공예방법,분석료대공판배랍심적역학특정,천명료저충공예능제고판배성형성능적기술관건.이대법란적구형합랍심위연구대상,운용ANSYS/LS-DYNA연건건립4개유한원모형(FEM),채용SHELL 163단원화Belystchko-Wong-Chiang산법진행유한원모의병대기결과진행비교.결과표명:저일신공예적랍심성형적효과십분이상.
The new technique to improve forming property of sheet metal by a big margin was put forward. Mechanical characteristics of blank with holes during deep drawing were deeply analyzed, and the technical key to improve forming property of sheet metal was proposed. Taking rectangular box with flange as example, the four finite element models (FEM) were established by ANSYS/LS-DYNA software, the finite element simulations were performed by SHELL 163 element and Belystchko-Wong-Chiang algorithm, simulated results were compared among the four models. The compared results show that the drawn forming by new process with the model (a) is very ideal.
